compiler/rustc_target/src/spec/x86_64_unknown_none.rs

   1 // Generic x86-64 target for bare-metal code - Floating point disabled
   2 //
   3 // Can be used in conjunction with the `target-feature` and
   4 // `target-cpu` compiler flags to opt-in more hardware-specific
   5 // features.
   6
   7 use super::{
   8     CodeModel, LinkerFlavor, LldFlavor, PanicStrategy, RelocModel, RelroLevel, StackProbeType,
   9     Target, TargetOptions,
  10 };
  11
  12 pub fn target() -> Target {
  13     let opts = TargetOptions {
  14         cpu: "x86-64".to_string(),
  15         max_atomic_width: Some(64),
  16         // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved
  17         stack_probes: StackProbeType::Call,
  18         position_independent_executables: true,
  19         static_position_independent_executables: true,
  20         relro_level: RelroLevel::Full,
  21         relocation_model: RelocModel::Pic,
  22         linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld),
  23         linker: Some("rust-lld".to_owned()),
  24         features:
  25             "-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-3dnow,-3dnowa,-avx,-avx2,+soft-float"
  26                 .to_string(),
  27         executables: true,
  28         disable_redzone: true,
  29         panic_strategy: PanicStrategy::Abort,
  30         code_model: Some(CodeModel::Kernel),
  31         ..Default::default()
  32     };
  33     Target {
  34         llvm_target: "x86_64-unknown-none-elf".to_string(),
  35         pointer_width: 64,
  36         data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
  37             .to_string(),
  38         arch: "x86_64".to_string(),
  39         options: opts,
  40     }
  41 }